Comparison between pea and soy protein‐based bioplastics obtained by injection molding

Jiménez‐Rosado, Mercedes; Rubio‐Valle, José Fernando; Perez‐Puyana, Víctor; Guerrero, Antonio; Romero, Alberto

doi:10.1002/app.50412

Cited by 16 publications

(9 citation statements)

References 34 publications

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“…Finally, the degradation time of each bioplastic matrix is indicated in Table 1. As can be seen, higher mould temperatures lead to more durable bioplastics, probably due to the better mechanical properties observed with increasing temperature, as is reported in previous works [51]. However, the incorporation of nanoparticles in the bioplastics caused this degradation to be faster, except for the systems with 1.0 wt% nanoparticles.…”

Section: Biodegradabilitysupporting

confidence: 74%

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

et al. 2021

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The union of nanoscience (nanofertilization) with controlled release bioplastic systems could be a key factor for the improvement of fertilization in horticulture, avoiding excessive contamination and reducing the price of the products found in the current market. In this context, the objective of this work was to incorporate ZnO nanoparticles in soy protein-based bioplastic processed using injection moulding. Thus, the concentration of ZnO nanoparticles (0 wt%, 1.0 wt%, 2.0 wt%, 4.5 wt%) and mould temperature (70 °C, 90 °C and 110 °C) were evaluated through a mechanical (flexural and tensile properties), morphological (microstructure and nanoparticle distribution) and functional (water uptake capacity, micronutrient release and biodegradability) characterization. The results indicate that these parameters play an important role in the final characteristics of the bioplastics, being able to modify them. Ultimately, this study increases the versatility and functionality of the use of bioplastics and nanofertilization in horticulture, helping to prevent the greatest environmental impact caused.

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Section: Biodegradabilitysupporting

confidence: 74%

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

et al. 2021

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“…), processing parameters (flow rate, voltage, distance between the needle and the collector, etc. ), and environmental parameters, such as temperature and relative humidity [1][2][3][4]. In addition, electrospinning is a versatile process that allows obtaining structured nanofibers, which are formed by micro-and nanosized fibers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Solution Properties in the Development of Cellulose Derivative Nanostructures Processed via Electrospinning

et al. 2022

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In the last few years, electrospinning has proved to be one of the best methods for obtaining membranes of a micro and nanometric fiber size. This method mainly consists in the spinning of a polymeric or biopolymeric solution in solvents, promoted by the difference in the electric field between the needle and collector, which is finally deposited as a conjunction of randomly oriented fibers. The present work focuses on using cellulose derivatives (namely cellulose acetate and ethylcellulose), based on the revaluation of these byproducts and waste products of biorefinery, to produce nanostructured nanofiber through electrospinning with the objective of establishing a relation between the initial solutions and the nanostructures obtained. In this sense, a complete characterization of the biopolymeric solutions (physicochemical and rheological properties) and the resulting nanostructures (microstructural and thermal properties) was carried out. Therefore, solutions with different concentrations (5, 10, 15, and 20 wt%) of the two cellulose derivatives and different solvents with several proportions between them were used to establish their influence on the properties of the resulting nanostructures. The results show that the solutions with 10 wt% in acetic acid/H2O and 15 wt% in acetone/N,N-dimethylformamide of cellulose acetate and 5 wt% of ethylcellulose in acetone/N,N-dimethylformamide, exhibited the best properties, both in the solution and nanostructure state.

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“…On the other hand, the soluble matter loss remained constant at 48%, which means that, apart from glycerol, because of the high solubility of pea protein, a small amount of soluble protein was also lost during immersion [44]. These results have been corroborated by Jia et al [39], who showed that the addition of cinnamaldehyde as crosslinking agent produced a decrease in the water absorption [40].…”

Section: Functional Propertiesmentioning

confidence: 73%

Influence of the Aliphatic Chain Length on the Crosslinking Properties of Aldehydes on Sustainable Bioplastics Obtained from Pea Protein

et al. 2022

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Conventional plastics can be substituted for protein-based bioplastics due to their natural origin and their biodegradability. Nevertheless, their properties are inferior to those obtained for synthetic plastics. The chemical crosslinking of these bioplastics with aldehydes could improve their properties to compete in the actual market. Thus, the main goal of this article was to assess the influence of the incorporation of aldehydes with different aliphatic chain length on the physicochemical (crosslinking degree, colour and transparency), mechanical (flexural and tensile behaviour) and functional (water uptake capacity and biodegradability) properties of protein-based bioplastics. In this sense, pea protein, a by-product of food industry, was used as raw material, processing it by injection moulding to obtain the bioplastics. Formaldehyde, glyoxal and glutaraldehyde were the aldehydes used as crosslinking agents. The results show the rise of the mechanical properties with the incorporation of the aldehydes, depending on the degree of crosslinking they generate. All this also causes a consequent loss of the water uptake capacity and an increase in biodegradability time. In conclusion, this work opens a new alternative to develop sustainable bioplastics that can be used in the market.

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Comparison between pea and soy protein‐based bioplastics obtained by injection molding

Cited by 16 publications

References 34 publications

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

Effect of Solution Properties in the Development of Cellulose Derivative Nanostructures Processed via Electrospinning

Influence of the Aliphatic Chain Length on the Crosslinking Properties of Aldehydes on Sustainable Bioplastics Obtained from Pea Protein

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